Adjustable brake-head.



No. 886,603. PATENTED MAY 5, 1908.

P. T. HAN'DIGES.

ADJUSTABLE BRAKE HEAD.

APPLICATION FILED FEB. 20, 1908.

2 SHBETS SHEET 1.

\\ ig g 1 PATENTED MAY-5, 1908. P. T. HANDIGES.

ADJUSTABLE BRAKE HEAD.

APPLIUATION FILED FEB. 20, 190B.

2 SHEETS-SHEET 2 19% ha use:

ilNiT STA' 'AF;N

Erie.

PHILIP 'l. HANDIGES, OF CLEVELAND, OHIO, ASSIGNOR TO THE DAMASGUS BRAKE BEAM (.10., OF CLEVELAND, ()lllO,A CORPORATION OF OHIO.

ADJUSTABLE BRAKE -HEAD.

Application filed February 20, 1908.

citizen of the United States, and resident of Cleveland, in the county of Cuyzthogz'i and State of Ohio, whose post-office address is Citizens Building, Cleveland, Ohio, have invented certain new and useful Improvements in Adjustable Brake-Heads, of which the fol lowing is a specification.

My invention relates to a railway brake head mounted upon the brake beam, in a manner to permit angular adjustment of the head so that the braking surface of the shoe will lie concentric with the tread of the wheel with which it is to cooperate, thus permitting the brake beam to be hung at different heights relatively to the axis of the wheel. Brake heads of this type as heretofore constructed have developed the disadvantage of working loose upon their bearings and permitting vibration between the arts, which soon becomes destructive of the earings and is generally objectionable, on account of the noise produced in travel.

My lnvention overcomes the ob ection above referred to by so constructing the brake head bearing that it may be caused to b nd continuously upon the sleeve or other member which provides the end of the brake beam, after the necessary adjustment has been efi'ected and will thus prevent any vibration between th'eparts and eliminate the noise and destructive wear.

My invention further provides an improved interlock between the brake head and the member .to which it is fitted, whereby displacement of the brake head, even in the event of its becoming loose, is prevented.

In the accompanying drawings, Figure l is a vertical transverse section through the end of a brake beam to which my improved brake head is applied, the section being taken on the line 1-1, Figs. 2 and 4; Fig. 2 is a rear elevation of the end of a brake beam having my improved brake head a plied thereto; Fig. 3' is a view of the parts s own in- Fig. 2 seen from -the right Fig. 4 is a section through the brake head on the line 4-4 Figs. 1 and 3, the sleeve forming the end 0 g the beam being shown in elevation Fig. 5 is a plan of the end of the beam provided by the sleeve; and Fig. 6 is an inner end view of the sleeve.

The brake beam to which my invention is shown applied'for purposes of illustration is Specification of Letters Patent.

Patented May 5, 1908.

Serial No. 416,946.

i a trussed brake beam, of which the compression member 1 is an angle bar and the .tension member '2 is a cylindrical rod. Fitted to the end of the angular compression member 1, through the medium. of a socket 3 and providing anchorage for the tension member 2, is a sleeve 4 which unites the compression and tension members of the trussed beam in the manner well known in the art. As will be seen in Fig. 5, the end of the compression member 1 is tapered, as shown in dotted lines, to adapt it to enter the sleeve 4 while said sleeve is provided with an angularly disposed face 5, against which is seated the nut 6 which secures the end of the tension member 2. A shoulder 7 provides an abutment for the brakohead.

The sleeve 4. is cylindrical in general outline and receives the ('orrespondingly formed bearing 8 of the brake head 9, which thus becomes angularly adjustable on the sleeve so that the bearing face of the brake shoe to be carried by the head, may conform to the tread of the wheel with which it is to cooperate, In order to fix the brake head against angular movement after it is adjusted, the bearing 8 is constructed in the form of a split ring or band clamp and is pro vided on opposite sides of the opening 10, with compressing lugs through which is fitted a clamping bolt 11. Bolt 11. preferably has its head 12 counter-sunk ina squared seat 13, while its not 14 may be provided with a plate lock 15.

In order to interlock the brake head with the sleeve or beam end and prevent axial dis-v placement without interfering with necessary angular adjustment, the sleeve 4 is rovided with a circumferentially exten ing groove or key-way-16, in which is fitted a block or key 17. As shown in Fig. 4, the key 17 fits between the walls of the groove 16 and also betweenthe walls of a pocket 18 formed in the brake head, so that when the key, is in the position shown'in Fig. 4, the brake head is securely held against axial movement on the beam. But the key-way 16 is extended concentrically with the axis of rotation of the brake head on the beam hence, the interlock between the head of the beam thus secured does not interfere with any angular adjustment of the head that may head, the key 17 may drop downward in its end, and a brake head constructed with a pocket 18 adistance suliicient to pass out of engagement with the key-way 16, and thus permit the head to slide axially on the beam. For releasablyholding it in locking position, it is made to rest upon the clamping bolt 11, so that when the latter is removed, the key will dro down and after the head is applied, the bloc (may be raised into locking position and the bolt inserted.

19 represents the usual hanger bearing to receive the link by which the brake head is supported from a fixed part of the truck. The brake head is not constructed to be invcrted in position for adapting it to forward and rearward presentation; the same end is attained much more economically by making the brake head reversible on the brake beam, for which purpose the key-way 16 occupies an intermediate position in the sleeve 4 and the pocket 18 is formed intermediately in the brake head, so that these arts coincide with either position of the bra re head. To adapt the brake beam to be inverted and thus permit it to be presented in'either posi tion, the key-way 16 is duplicated on o posite sides ofthe horizontal diameter of t 1e sleeve 4, as will be readily understood upon reference to Figs. 1 and 1.

In applying the brake head, the parts are assembled in the relation shown in the draw ing but with the clamping bolt 11 loosened, so that the brake head is free to rotate on the end of the beam and adapt the position of its brake shoe (not'shown) to the tread of the wheel with which it is to cooperate. The brakes are then drawn up tightly s9 that the brake head will assume the proper angular position, and while the brakes are on, the clamping bolt 11 is screwed up tight and its plate lock applicd. If desired, as a precautionary means, an auxiliary device to retain the brake head on the beam may be employed, to prevent displacement of the head in the event that the clamping bolt 11 should work out. and permit the key 17 to drop. This supplemental or precautionary device may be conveniently provided in the form of a split cotter pin 20 (see Figs. 2, 3 and 5), passing through the lugs 21 on the outer end of the sleeve 4 and lapping over the bearing 8 ol' the brake head.

ilaving thus described my invention, what 1 claim as new therein and desire to secure by Letters Patent is 1. A brake com )rising a brake applying member, and a brake head having a bearing, through which it is mounted upon said brake applying member with freedom of angular zuljustmcnt; one of said parts having means for changing its transverse dimensions relatively to the other to cause the parts to bind in their assembled relation.

2. An adjustable brake comprising a brake applying member and having a cylindrical a key engaging wit cylindrical bearing adapted to fit upon said cylindrical end with freedom of angular adjustment relatively thereto; and means changing the transverse dimension of one of said parts whereby the bearing is caused to bind on,the cylindrical end and maintain the angular position to which the head is adjusted.

3. In an adjustable brake, the combina tion of the brake applying member or beam having an end with cylindrical surface, and a brake head constructed with a bearing fitting said end of the brake beam said bearing being in the form of an open ring and having means for contracting it upon the end of the brake beam after the angle of the brake head is determined.

4. In an adjustable brake, the combination of the brake applying member, the head having a bearing fitted to the brake applying member with relative angular movement thereon, means for interlocking said members against relative axial movement while per- .jmitting relative rotation between them, and

independent means for varying the trans verse dimension of one of the members relatively to the other and thereby causing them to bind and prevent relative rotation.

5. In an zuljustable brake, the combination of the brake applying member or beam having a cylindrical end. constructed with a circumferentially extending groove, a brake head having a bearing fitting said cylindrical end and constructed with a pocket, a key titted within the pocket of the brake head and extending into the groove of the cylindrical end, and preventing relative axial movement between the parts with which it engages, and independent means for securing the brake head. in the angular position to which it is adjusted.

6. In an adjustable brake, the combination of the brake applying member having a supporting end constructed to receive a brake head, a brake head having a bearing constructed to fit rotatably upon said end to provide for angular adjustment relatively thereto and compressible to bind it upon said end after the angular adjustment is secured, a key engaging with and confined a ainst axial movement relatively to both the brake head a id' supporting end, but movable relatively to one of said parts in the direction of angular adjustment ol" the head, and means for compressing the bearing of the head upon thesupporting end.

In an adjustable brake, the rombination of the brake supporting cud brake head, a brake constructed to [it rotatubly upon said end to provide .l'or angular adjustment relatively thereto and compressible to bind it upon said end after the angular ad ustment is secured, h and conhned against applying member having a constructed to receive a I head having a bearing tia ly I tively to one of said parts in the direction of head, a brake head constructed angular adjustment of the head, and means for compressing the bearing of the head upon the supporting end; saidkey being movable radially in one of said parts to release it from engagement with the other of said parts and being held against said radial movement to maintain its interlocking engagement by the compressing means.

' 8. In an adjustable brake, the combination of the brake applying member having a supporting end adapted to receive a brake with a ring clamp provided with a compressing bolt and fitting and angularly adjustable upon said supporting end and binding thereon to maintain its position after the adjustment is obtained, a key adapted to interlock the brake head with the supporting end; the supportin end being provided with a circumferenpro ects, and the brake head being provided with a radially extending pocket in which the key fits; the clamping bolt of the ring clamp extending through the key pocket, beneath the key when the latter is projected into the key-way and holding the key'in interlocking position.

9. In an adjustable brake, the combination of the brake applying member having extending key-way into which the key,

j structed with and a brake head reversibly fitted to said supporting end and having means for inter looking it therewith, dis oscd in intermediate positionthereon and engaging with the iupgorting end in either position of the brake eac 10. In an adjustable brake, the combination of the brake applying member having a supporting end constructed to receive abrake ead, and a brake head constructed with a bearing fitted to said end and carrying an interlocking key the supporting end being concircumferentially extending key ways on opposite sides thereof to permit the brake applying member to be reversed in position relatively to the head.

11. In an adjustable brake, the combination of the brake applying member having a supporting end constructed to receive abrake head and with two 0 positely disposed circumferentially extending key-ways therein, and a brake head constructed with a bearing adapted to fit the sup orting end reversibly and carrying an inter coking key movable radially into engagement with either of said key-ways.

PHILIP HANDIGES. I

In presence of two witnesses:

ALBERT WAYcoT'r, C. S. SWANN. 

